Birch is a product series of JIANYU, which provides a "High-strength" solution for 3D printing filaments. It has excellent mechanical properties and print quality, and exhibits great tensile strength and durability, making it suitable for long-term stress scenarios. It is a premium PLA carbon fiber composite material known for its high rigidity, refined texture, and ease of printing. It produces parts with an impressive texture characterized by a sand-like smooth surface, discreetly hidden layer lines, and a matte, pristine finish. It is outstanding for printing projects that demand both functionality and aesthetic appeal. It provides exceptional printing performance along with superior mechanical strength. It is particularly well-suited for producing items that feature pronounced surface effects, such as device enclosures, functional artistic creations, and prototypes for industrial product designs.